IQ8MC/IQ8AC/IQ8HC Microinverters Installation and Operation Manual
38 © 2023 Enphase Energy Inc. All rights reserved. October 2023
USM-00008-1.0
IQ Cable specifications
Specification Value
Voltage rating 600 V
Voltage withstand test (kV/1min) AC 3.0
Max DC conductor resistance (20ºC) (Ω/km) 5.433
Insulation resistance (20ºC) ≥20M (Ω/Km)
System temperature range (ambient) -40°C to 65°C (-40°F to 149°F)
Cable temperature rating 90ºC Dry/90ºC Wet
Cable rating DG
Certification UL3003, TC-ER equivalent
Flame test rating FT4
Cable conductor insulator rating THHN/THWN-2
Environmental protection rating IEC 60529 IP67NEMA 6
UV resistance 720 h
Compliance
RoHS, OIL RES I, CE, UV Resistant, combined UL for
Canada and the United States
Conductor size 12 AWG
Maximum loop size 12 cm (4.75")
Flat cable dimensions 6 mm x 9.5 mm (0.2"x 0.37")
Sealing cap dimensions 38.6 mm x 20 mm (1.5" x 0.7")
Cable connector dimensions 20 mm x 1.1 mm x 6.5 mm (0.7" x 0.04" x 0.25")
Enphase connector ratings
Enphase connectors on the cable assemblies in the following table have a maximum current of 20 A, a
maximum OCPD of 20 A, and a maximum ambient temperature of -40°C to 79°C (-40°C to 174.2°F) and are
rated for disconnection under load.
Part number Model Maximum voltage
840-00387 Q-12-10-240 277 VAC
840-00388 Q-12-17-240 277 VAC
840-00389 Q-12-20-200 277 VAC
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